2005 Cadillac CTS Owner's Manual - Page 332

Back-Up and License Plate Lamps 4. Pull the lamp assembly away from the vehicle to expose the bulb sockets. 5. Turn the bulb socket one-quarter turn counterclockwise and pull the bulb and socket out of the lamp reflector. 6. Pull the old bulb from the bulb socket keeping the bulb straight as you pull it out. 7. Install a new bulb. 8. Reverse the steps to reinstall the lamp assembly. Replacement Bulbs A. Back-Up Lamps B. License Plate Lamps To replace a back-up or license plate bulb, do the following: 1. Open the trunk. See Trunk on page 2-12 for more information. 2. Remove the cloth cover on the trunk lid by pulling out the three push-pins located on the underside of the trunk lid. 3. Remove the eight mounting nuts from the underside of the trunk lid by turning the nuts counterclockwise. Exterior Lamp Back-Up Lamp Fog Lamp License Plate Lamp Rear Sidemarker Lamp Stoplamp Taillamp Bulb Number 3157K 9145 W5WLL 3157K 3157K 3157K Front and Rear Turn Signal Lamp 3157K For replacement bulbs not listed here, please consult your dealer. 5-52